package webServlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.fasterxml.jackson.databind.ObjectMapper;
import cn.user.domain.dao.UserDao;

/**
 * Servlet implementation class checkUserServlet
 */
@WebServlet("/checkUserServlet")
public class checkUserServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	       String username=request.getParameter("username");
	       boolean flag=new UserDao().checkUsername(username);
	       //响应数据
	       ObjectMapper mapper = new ObjectMapper();
	       response.setContentType("application/json;charset=utf-8");
	       mapper.writeValue(response.getOutputStream(),flag);
	}


	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}
